Separation of monoolefins from paraffins

Details Separation of monoolefins from paraffins Separation of monoolefins from paraffins

1990-10-26

1991-11-26

Manoharan, Virginia

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

203 51, 585862, 585865, 585856, B01D 340

Patent

active

050680110

ABSTRACT:
An extractive distillation process for separating at least one C.sub.4 -C.sub.10 alkene (monoolefin) from at least one close-boiling alkane employs solvent at least one N-mercaptoalkyl-2-pyrrolidone, preferably N-(.beta.-mercaptoethyl)-2-pyrrolidone, optionally in admixture with at least one N-alkyl-2-pyrrolidone, preferably N-methyl-2-pyrrolidone.

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"Handbook of Separation Techniques for Chemical Engineers", by Paul Schweitzer, McGraw-Hill, 1979, pp. 1-135 to 1-143.
"Extractive Distillation Saves Energy", by Ian Sucksmith, Chemical Engineering, Jun. 28, 1982, pp. 91-95.
"Perry's Chemical Engineers' Handbook", Sixth Edition, McGraw-Hill, 1984, pp. 13-53 to 13-57.

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